Hi, I have two Excel "book1.xlsx" and "book2.xlsx", book1.xlsx have 1,000,000 rows and 10 columns, book2.xlsx have 100,000 rows and 5 columns, I need to used two Excel match the data each other, but the data is too big, can not read a collection, it will out of memory.
I can not try to OLEDB object, because it was two workbooks, I don't know how to write the SQL.
I tried to used Excel vlookup function, but is too slow.
I tried to Import two Excel data to Access and SQL execute, but the Excel data is Mixed digital text every column, if data vaule is not text in the first 8 rows, it will miss the text value of the rest data.
I was wondering if there was a solution?
I can not try to OLEDB object, because it was two workbooks, I don't know how to write the SQL.
I tried to used Excel vlookup function, but is too slow.
I tried to Import two Excel data to Access and SQL execute, but the Excel data is Mixed digital text every column, if data vaule is not text in the first 8 rows, it will miss the text value of the rest data.
I was wondering if there was a solution?